Yuan Yuan the bear

My plank-holding times are steadily improving, but Yuan Yuan, whose body is some kind of mystery of science / voodoo, is gaining on me quickly. When we started out a few weeks ago, I could do 2 minutes and a bit. Today I hit 3 minutes 45 seconds, but then I had to lay there and drool on the floor for a while, until there was enough of a buoyant force for me to get up without popping an absicle. Yuan Yuan started out at a max of 40 seconds or so, and hit 2 minutes today, though she was whooping like a Native American at a scalping for the last 30. In a few weeks she'll catch up and overtake me. She could always do handstands longer than me (1 min 24 seconds), she can hold a bridge for 3 minutes, and she holds the record for jump-roping - 650 in a row. Mario would just shrug and say "that's impossible, I refuse to believe it," when she would beat us both at some new exercise. I often call her bear-related affectionate names, but I'm starting to think she might really be part bear. She sleeps a lot, 15 hours a few days ago, 10-12 regularly, she's super strong but she can barely do 5 push-ups, she can eat twice as much as me easily and being full is no deterrent, she's got a big head and her yawns are closer in shape to a banana (vertically) than an apple, she runs uphill faster than downhill, and she's covered with 3-inch long thick brown fur all over her body. The only thing not in her favor is that she's completely indifferent to meat. Maybe that's the only thing standing between me and a bloody puddle of me-leftovers.